Shattered Magic - Darkness Summons, #4

Cass is trying to reconcile with the fact she has a darkness deep within. And as if that's not enough, the dark ones in the sea are summoning her. Laurel is still missing. Kai is. who knows what's going on with Kai. All she knows is that he's confusing as hell. And still, he insists on accompanying her and helping her. Even though he damned near killed her. This seems like a match made in hell, doesn't it? Add to that the missing relic that they need to destroy in order to eradicate the dark ones.
So, what's our trio to do-oh, yeah, Sophia's insisting on being one of the party! They will visit the Sinclair Castle in the Scottish Highlands to find out how to destroy the missing stone. And meet Kai's parents. Not quite so thrilling. So, back to the whole match made in hell.